Oops! It is, of course, All Saints and not St John's. And I didn't even need AI to make stuff up for me.

Light 1, panel 3 from the 'Pricke of Conscience' window, St John's York. Three fish, each with their mouths open and showing their sharp teeth, rise from the surface of a grey sea into a clear but ominously dark blue sky.

St John's York
The fierth day, sal swilk a wonder be
The mast wondreful fisshes of the se
Sal com to-gyder and mak swilk roryng
That it sal be hydus til mans heryng
Bot what that roryng sal signify,
Na man whit, bot God almyghty
#stainedglasssunday

A hexagonal red pillar box with a VR cypher on a pavement with out of focus vehicles and buildings behind

The Penfold at Laura Place, Bath.
#postboxsaturday

A red pillar box stands in front of a low wall. Behind, the grassy mound of an earth motte, the sun filtering through the bare branches of the trees now growing on it. On the left, a fragment of York Bar Walls descends to a bridge across the River Ouse (out of picture).

An EiiR post box underneath Baile Hill, York.
#postboxsaturday

There are around 100 in the UK, painted to celebrate gold medal winners at the 2012 Olympics and Paralympics. This one celebrates Geraint Thomas's gold in track cycling.

Lovely crow-stepped gable behind, too!

An anonymous (no royal cipher) post box on a street with a hedge and Victorian houses behind.

A smart anonymous post box in an equally smart corner of Clifton, Bristol. #postboxsaturday

A gold-painted pillar box, centre, with Cardiff Castle Clock Tower behind.

A gold EiiR pillar box overlooked by the statues of Mars and Sol on Cardiff Castle Clock Tower.
Mae'r blwch postio hwn wedi cael ei
baentio'n aur gan y Post Brenhinol i ddathlu
Geraint Thomas
Enillydd Medal Aur
Gemau Olympiadd Llundain 2012
Beicio: Trac - Cwrso Carfan Dynion
#postboxsaturday

A leafless late winter tree, almost in silhouette, stretches up into a partly blue sky

Possibly not thick enough for #thicktrunktuesday ? but I really liked the twist in this tree trunk. Museum Gardens, York

A country lane, wet with rain and scattered with bright autumn leaves, left foreground. On the right, a stone wall with a red post box and a bush with bright yellow leaves. Centre midground is a tall stone house, formally the gatehouse to Barrow Court.

An Edward vii postbox set into a wall at Barrow Court, North Somerset
#postboxsaturday

A red pillar box, left, stands on a street in front of a low brick wall. Behind is the neo-gothic Aberdare Hall, a student hall of residence.

This be-stickered GR pillar box stands in front of WD Caröe's neo-gothic Aberdare Hall, Cardiff.
#postboxsaturday

Two red pillar boxes, centre, across a street with a painted 'keep clear' sign partially obscured by a parked car. Centre left a down pipe from a roof gutter runs at an interesting angle, presumably to avoid snagging the shop front steel shutter, left.

Twin EiiR pillar boxes, the nearer one converted for solar power. Meanwhile to the left, a rainwater downpipe runs at jaunty angle across a wall. Burnham-on-Sea, Somerset.
#postboxsaturday

A tile roofed bus shelter with parish notices and half-barrel planters, bus stop sign on the left and postbox on the right

A CiiiR lamp box stands brightly beside a rather gloomy tile roofed bus shelter in Lower Langford, North Somerset.
#postboxsaturday

Yes, it's the buildings behind that are Georgian not the post box which, as you say, is Victorian.

A red pillar box on a paved footpath, a street with parked vehicles behind it and a Georgian terrace on the far side of the street.

The penfold pillar box at the eastern end of Great Pulteney Street, Bathwick, with sunshine lighting up the Georgian terrace behind.
#postboxsaturday

A red lamp box on a post on a green verge, with a street and houses in the background

This EiiR lamp box can be found on Love Lane, Burnham-on-Sea - perhaps an appropriate location for today's date.
#postboxsaturday

A red pillar box in the foreground with a side-on view of the Redland Library building behind under a bright blue sky

A bit of a squeeze between some railings and the back of this type k post box in order to include the Redland Library building ('1885 Bristol Free Library Redland Branch' on the gable end) in the photograph.
#postboxsaturday

Two red post boxes standing on the pedestrian pavement in the foreground, with moving traffic behind and a yellow Thrift Store shop front on the far side of the road.

Two type k pillar boxes half way up Bristol's Park Street. Once there must have been a high volume of letter-posting here - there are two double aperture type c boxes within 200 meters of this handsome pair.
#postboxsaturday

A tree growing around a VR pillar box

Hysbysiad Gwsmeriaid
Yn anffodus, mae’r Post Brenhinol wedi gorfod gwneud y blwch postio hwn yn anweithredol am nad yw twf y goeden a r ffaith fod y palmant wedi codi bellach yn ei wneud yn ddiogel l gasglu post o’r blwch hwn.
Y Rhath, Caerdydd
#postboxsaturday

A postbox, centre, set against a foreground of short green grass, a blush brown midground of tall grasses, and pale blue sky.

A 'diabolical' lamp box (number BS20 666D) stands amidst vaguely Rothko-esque fields of colour. Portishead, North Somerset.
#postboxsaturday

A 'hovis' lamp box in a beech hedge

A worn but functional GR 'hovis' lamp box in a hedge in deepest Barrow Gurney (home of brother Ernie in 'Drink Up Thy Zider'), North Somerset.
#postboxsaturday

Victorian postbox, centre, In front of the Victorian-built Weston-super-Mare town hall.

A Victorian pillar box, missing its collection plate, in Weston-super-Mare. Behind is the town hall, built in a 'vaguely Italianate style' (Weston Mercury).
#postboxsaturday

An 'anonymous' pillar box, with no royal cipher, with the eastern tower of the Clifton Suspension Bridge in the background.

An 'anonymous' pillar box on the Bristol side of the Clifton Suspension Bridge.
#postboxsaturday

Rural bus stop, post box, parish noticeboard, bench and pole with Christmas decorations.

A type M post box among street furniture with Christmas decorations. Walton Bay, North Somerset.
#postboxsaturday

A red EIIR pillar box in front of Bristol Central Library

EIIR pillar box in front of Charles Holden's 'extremely pretty' (Pevsner) Bristol Central Library.
#postboxsaturday

An ashlar niche in a rubble wall containing a letter box with GVIR cipher.

This George VI wall box shelters from the weather in a shallow ashlar niche under an ogee arch. Clevedon, North Somerset.
#postboxsaturday

View south west down the railway line from Yatton station platform 2. VR wall box on the right.

A nice Victorian wall box on the northbound platform at Yatton railway station.
#postboxsaturday

A Victorian wall-mounted post box to the right of the stone obelisks at the entrance to Cotham Park

A Victorian wall box by BP Walker's Eagle Foundry near the stone obelisks marking the entrance to Cotham Park, Bristol.
#postboxsaturday

A Victorian Pillar Box, one of three at the Somerset side of Clifton Suspension Bridge

Victorian pillar box, one of three on the Somerset side of Clifton Suspension Bridge
#postboxsaturday
#postbox