A Barcalo Buffalo AT8052
A Blue Point (unmarked) AT8052 with a 41 code
The ATxxxx wrenches are usually Whitworth, but a few were SAE
DSCF2406 by wvwheaties, on Flickr
DSCF2407 by wvwheaties, on Flickr
DSCF2409 by wvwheaties, on FlickrMine has a flat head screwdriver tip at the end.It looks as if the end on your Barcalo hammer may have been modified. Mine looks a bit different but I imagine that they started out looking the same. Maybe mine has been shortened.
-Don
Mine has a flat head screwdriver tip at the end.

Mine has a flat head screwdriver tip at the end.
If the OAL and the placement of the branding is any indication, it sure looks like it.Maybe mine has been shortened.
I'm not so sure if its a screwdriver end or a pry bar end since I took a closer look. Looks original to me though.Does the flat head screwdriver look original or user modified? The only ones I’ve seen are yours and mine. Yours looks longer to me which is why I now suspect that mine has been shortened.
-Don
DSCF2417 by wvwheaties, on Flickr
DSCF2416 by wvwheaties, on FlickrThe first evidence I’ve seen of this style of Barcalo wrench appears in this recently discovered 1958 catalog. They are also in Tin Medic’s 1960 catalog. I believe they are the last style of wrenches made by Barcalo.
-Don
J,
Thanks for all of the pictures. Were most of your wrenches sourced in the UK? All of the Whitworth examples I’ve heard of have been found there. It was clever of Barcalo to make the unique raised panels on the Whitworth wrenches to easily differentiate them from the rest of their wrenches. I imagine that all of the Whitworth production was for the war effort since I don’t know of any that have been found in the US. Here are some others found by a long time collector in Wales.
-Don
Here are a couple of recent Barcalo-made combos that I purchased recently. Both are what I call "Thick Panel" models. The side panels are large and much thicker than previous models. I believe that these were late production, and I have seen them marked as Wardmaster and Crescent in addition to Barcalo. The markings are usually etched, and are often worn off. The shorty DBE here has no markings left at all.
Do you guys think that I have this right?
I see so many of these 'Roofline' wrenches every week (easily the most ubiquitous type in my neck of the woods, along with Indestro Select Steel, Craftsman CI, and Billings) that I always leave them behind, but I don't recall seeing one this small before. So small it's unbranded. Someone wedged the 13/32" head with a grinder, unfortunately. Let me know if you want it, Don, or if you already have one.
I saw a Crusader combo today Don. Possibly a 7/16”. Sadly both jaws were badly spread.