Williams Scope Mounts ?

Recently bought two Williams side mount scope mounts. In taking them apart I noticed the front ring is adjustable for windage. There doesn't seem to be any adjustment for elevation. Since the rings are 26mm, I was wondering if these were made for the European scopes that only had elevation adjustments ?

On these, the rear ring has a threaded stud fitting in a hole in the base secured by a knurled thumbwheel.
The front ring looks the same but when removed there is a brass lined eccentric with three notches. The ring can be put in any of them and the brass piece can be rotated to change windage. That ring (same as rear) also is held in place by the same knurled thumb wheel from below.

Here's a photo of a base. You can see the brass eccentric. Page down to large photos.

https://www.google.com/search?q=williams+scope+mount&es_sm=91&tbm=isch&imgil=WoraHoU1qcOtYM%253A%253BJbwwI1nhBVBILM%253Bhttp%25253A%25252F%25252Fwww.gunauction.com%25252Fsearch%25252Fdisplayitem.cfm%25253Fitemnum%2525253D9131630&source=iu&pf=m&fir=WoraHoU1qcOtYM%253A%252CJbwwI1nhBVBILM%252C_&usg=__zSVB7dA3Kndd_zA6HmBS_SYO9Rg%3D&biw=1280&bih=642&dpr=2&ved=0CE0Qyjc&ei=_9aAVPjKH4mZjAKK1ID4Dw#facrc=_&imgdii=_&imgrc=unwVPPpENaphrM%253A%3B2l5o1JqwJUMMeM%3Bhttp%253A%252F%252Fwww.brownells.com%252Fuserdocs%252Fproducts%252Fp_962070070_1.jpg%3Bhttp%253A%252F%252Fwww.brownells.com%252Foptics-mounting%252Frings-mounts-amp-bases%252Frifle-bases%252Fside-mounts-prod16153.aspx%3B400%3B400

Here's a picture of an assembled mount on a Jap rifle.

https://www.google.com/search?q=williams+scope+mount&es_sm=91&tbm=isch&imgil=WoraHoU1qcOtYM%253A%253BJbwwI1nhBVBILM%253Bhttp%25253A%25252F%25252Fwww.gunauction.com%25252Fsearch%25252Fdisplayitem.cfm%25253Fitemnum%2525253D9131630&source=iu&pf=m&fir=WoraHoU1qcOtYM%253A%252CJbwwI1nhBVBILM%252C_&usg=__zSVB7dA3Kndd_zA6HmBS_SYO9Rg%3D&biw=1280&bih=642&dpr=2&ved=0CE0Qyjc&ei=_9aAVPjKH4mZjAKK1ID4Dw#facrc=_&imgdii=_&imgrc=Q9MmZzfzW0YIAM%253A%3BdJEnj0XLWX5OqM%3Bhttp%253A%252F%252Fi224.photobucket.com%252Falbums%252Fdd293%252FLX_Kid%252FGuns%252FDSCN1147.jpg%3Bhttp%253A%252F%252Fforums.gunboards.com%252Fshowthread.php%253F242240-WTB-Arisaka-T-99-scope-mount-by-Williams%3B640%3B480

Thanks

There's a knurled wheel under the base under each ring to aid in mounting. Gives you a limited amount of windage. They also had the "windage ring" that you could buy separately to mount in the back.