TubeNet

http://www.ebay.com/itm/HOLTON-FRANK-An ... 1973734985

(second verse, same as first...)

Would this be the Eb then? No doubling back of 3rd valve loop... But it is front action, which allows it to extend upwards as well as downwards... Looks to be in pretty good shape, by my untrained eye.

Yup, E flat (only 3 branches).

Way overpriced, IMHO (a very similar York E flat sold on eBay a few months ago for around $500, and only had one bidder. I was sorely tempted, as it was within an hour's drive...).