A us marked .22 automatic pistol?

[Doco overboard]

Here are are few shots of a real nice shooting 22 pistol. It has a US mark on the left side of the frame but no other ordnance marks that I can tell. I think it may date from the early 50's and is very accurate at 25 to 30 paces. I have to shoot it from a bag to get the best groups and the sights seem to be regulated for a 6 o'clock hold with 40g round nose lead federal generic ammo. There are so many variations of High Standard offerings but I can find none like it by description. Any info would be great. [ATTACH][ATTACH][ATTACH][ATTACH]Attachment 69942[/ATTACH][/ATTACH][/ATTACH][/ATTACH]

Information

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[25-5]

I think it's a Supermatic Tournament. 1960-1965. Looks like a 6.75" tapered barrel.
They had the U.S. stamp. Standard ammo only. No Mini Mags.

[Bruce McAskill]

It's what 25-5 said. A Supermatic Citation but it's stamped as a 101 were the Citation would have been a 102. The Blue book lists that only 102 were ordered by the government. It looks like the pistol has been refinished. Might be the photos but it does look like it. Value drops like crazy if it's been refinished. You can add $50 to the value for the US stamp. Made about 1959 or so.

[Doco overboard]

Gentleman, thanks for your thoughtful replies. A search feature used on this site instantly revealed a previous post that contained information in regard to the item. It is the most useful info that I have found with the exception of what was shared in regard to my original post. It can be found under US marked High Standard Pistols, go figure. Other web based research revealed a High Standard enthusiast serial number chart that indicated manufacture of about 1957 which was corroborated by the info on this site. There are well made photographs and replies from others that instill more confidence from what I have gleaned elsewhere on the net. It seems as if the item has an interesting pedigree that explains the exceptional accuracy and its relationship to other performance oriented (makers) competitors from the time. Sorry if I have wasted any of your valuable time for not using the search feature before I wrote. It does not appear to me to have been refinished because of the sharpness of the lines and the presence of raised metal above the stamped markings in all there continuation. However the left side and lower portion of the frame with the exception of the barrel, slide and breech block appear to be a sort of matte texture that looks exactly like the pictures of the other example. I am not an expert in this area but have used crocus cloth and trued steel blocks to repair rust pits and such on more common arms that I could not damage any further. The only difference that I was able to see was that the front site blade on my example is retained by a screw with a straight slot and the one in the earlier post has a hex arrangement. The numbers are nearly the same with my example being slightly earlier by only a few, I couldn't quite make out the last two digits from the earlier pictures.
Thanks, Brian