Vision TVH

Vision Research Laboratories (of Richmond Hill, NY) was an early postwar television booster and component manufacturer.
The TVH was the high band (channels 7-13) version of the model TVL which appeared in early 1948. If you have one of these, please Email me!

This is the ad picture, from the March 1948 issue of Radio Craft.

For comparison, this is Vision model TVL, which differs only by the engraving at lower right.
It would say "Model TVH" and below that, "Channels 7-13".