Some GWR tank engine bunker seams

1466, Didcot (with oversize rivets)

1369

5643

5227, Barry

1450

1450

5801, Barmouth, post-WWII

1470, Totnes, after renumbering, c 1947 this is the exception to the general construction, with very few snaphead rivets down the seam, and maybe flush-rivets were used on the rest of the seam

9400 unknown loco, Newport, 1950s

9400

4805, fresh out of the shops in 1932

4572, Westbury, 1958