Topper was a stencil name...this is a Conn Pan American, so their second line horns. Not to be confused with their Naked Ladies. So it's a "PanAm stencil".
Not much market value here in states maybe $100usd in that condition. Might be worth a tad more on your side of pond. 125quid maybe, tops ?
The serial number, which looks like 60086 ?.... will not conform to Conn serial numbers, Pan Americans (although made by Conn at their plant, that is what they called their second shelf line) had their own serial sequence.
Kevin McKnight (member Badenia ofver at SOTW not sure if he is a member here ?) put together that serial number list over a period of about 5 years, I helped him with the registry a little bit, so it's an accurate list:
Deze pagina bestaat niet of is niet meer beschikbaar. Oude XS4ALL-homepages zijn soms nog terug te vinden via webarchieven.
cderksen.home.xs4all.nl
Makes it around 1947, which looks around right judging from the details.
GOOD workhorse horns, these had the same body and neck tubes as the 6M's...so a good, reliable player when in near play-shape.
To bring this one back, as noted by others, would purely be a labor of love, because even in tip-top (pun sorta intended) shape....it'd only be worth maybe $450usd/550quid. But having a shop fix it will run at least 500quid as I understand UK tech prices these days, or if you are in US it'd be a good $500 of repair work. So you'd be putting more money into it that its market value.
But for a novice or DIY repairman wanting a good patient to mess around on, maybe worthwhile.