Can anyone ID this case trimmer. It is at a local gun shop and he said , make an offer, so what's it worth? THANKS,,, LK

The trimmer looks like a Forster. CSA = C. Sharps Arms mold.

Herter’s made a knockoff of the Forster trimmer; it could be one of theirs.

I have one with the Forster turning and holding parts grafted onto a shop-made aluminum base.  Easier to hold in a vise; whereas I needed to put a wood base on the “real” Forster setup to be able to clamp it down in order to trim with an electric drill, or even to crank hard on overlong case mouths.

A well-set-up Forster should have all three collets to hold (pretty much) all sizes of shell rims.  A few case mouth mandrels in different caliber sizes also increases the usability.  The parts are available from Forster, at a price.

I sold one maybe 10 years ago with a couple collets and mandrels for $45 shipped, IIRC.  It was the “standard” length base; I think there’s a short and a long one also available.  Forster’s catalog is On Line; you could go to that and see what all that stuff goes for today, if it’s available.

They do a good job of trimming, but I find my Lyman trimmer is more easily changed around for the miscellany of calibers I shoot.  The Forsters I found I leave set up for .45-70 and .44-77.  I had to bore out a collet holder to fit the rim of the latter.

Moulds used to be ~$30/cavity or less, unless they were unusual or rare.  They seem to edged up to ~$45/cavity or more, now that we’re “building back better.”  IME, .50 calibers don’t show up very often.

Someone brought the following in to the local gun shop to sell and  they sent my son pics, knowing we are into the old stuff!

2 RCBS 50-90 sharps 46614 three die sets
1 RCBS 50-90 trim die 55000
1 C Sharps SC Alum mold block 50 440
1 unidentified steel SC mold block (50?) 
1 Herters case trimmer
1 RCBS Posi prime
1 box, 20 rounds 50 90 loaded cartridges
   (apparently commercially made by ?) 

My first question was "WHERES THE RIFLE????" We are going down today for more info and see if there is an asking price. I have a 50-70, a couple of 45-70's and a 45-110....maybe this is an OMEN!!!!!