Question on Quality Hardware Slide

[USGI]

Can you guys tell me what kind of finish this slide has? At first, I thought it was a cast slide - maybe post war replacement. After doing some research, I'm starting to think someone sandblasted it and never got around to re-parking it. What do you guys think? Apparently it is for Quality Hardware and supplied by A. Dalkin. Type E-279 (Type 3).
Thanks, Bob

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Information

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[USGI]

I tried to add some better pictures, but still having trouble showing the finish. Is this parkerized or just sand blasted? When I bought it, I thought it was new - but looked "funny." The tab on the slide measures about .241" which is a whole lot better than my old worn Type 4 which was down to about .228" - I ran it in my Inland last summer and it works well - just can't figure out the "story" on the finish. Thanks - Bob

[CrossedCannons]

Some parts were left "in the white" by their makers. I've got a LT-Q hammer and SW sear, both nice and shiney, with "no finish". Perfectly legit. As for slides, I personally have not seen or heard of an example, but that really means very little.

[USGI]

Thanks CC - your input is appreciated. It would be neat if we could have a show with completely disassembled carbines - all of our collective parts out on tables so everyone could see and compare and gain knowledge from it. I guess we try to do that with pictures here on the forum - every little bit helps. I dug this slide out of a box of parts at a gun show, looking for one that had very little wear on the tab. I wasn't happy with the light gray look (no finish? or cast iron?) but now know that it's at least a genuine GI part. Almost all of the exposed edges are bright as if from a lot of handling. Maybe it was a "left over" after the war ended, and the manufacturer sold them off just to get rid of them. - Bob

[DaveHH]

It looks like the part was finished but it is just a worn thin finish. Doesn't look "In the white" to me at all. Lighting affects how the finish looks a great deal, ranging from dark to invisible.

[phillydude]

it was heavily sandblasted, thats what gives it that cast finish. look closely at the stampings, they are not well defined, which is caused by the blasting

[Rustship]

I agree with you Brian, but maybe bead blasted, doesnt take as much off.