Need more help identifying these molds. T/C maybe?

[happy7]

I picked up a couple black powder molds. They have aluminum handles and black anodized aluminum blocks. One is a hollow base 58 cal and says A 577 on side. The other appears to be 54 cal and says D 541 on side. Does anyone know anything about these? From looking around on the internet they appear to resemble the blocks of Thompson Center, but I have never seen any of their molds that look like this. Did they have cast aluminum handles?

[sturf]

the 58 cal on the bottom is an old "Shilo" mold from around 30-35 years ago. have one just like it. they make very good boolets. care for it as you would a Lee.

[madcaster]

The handles are as well(Shiloh,I mean),and probably the wadcutter single cavity mould as well.Once I had one of those 58 caliber wadcutter Minies,pretty well drains a:coffee: pot fast!

[montana_charlie]

Yep, Shiloh.
I have a .45 Maxi-Ball mould with identical handles.
CM