Yeah, was wondering that... based on the headtube/lug configuration I *think* it's an 18 inch as opposed to 16.5, but it's a bit hard to tell.
Nice bike - hope somebody gives it a good home! :)
Not mine... doesn't seem to have been ridden much.
https://www.ebay.co.uk/itm/225439679632?hash=item347d408490:g:JX4AAOSwT69j9fUs
(I prefer the older lugged frames, but these were still True Temper).
Not mine, evident rust, etc - but I do like these older Trek lugged frames.
https://www.ebay.co.uk/itm/394038917233?hash=item5bbe8cb871:g:PrMAAOSw7pFiYAmV