A friend has an all-alu Acrolite for sale - so called Pre-serial Keystone, prototype thingy.
Hoops and probably even lugs are aluminium - it is featherlight.
The damper is missing, or rather a later damper is incorrectly fitted, that seems to about all that´s "wrong".
Se here: http://www.trommeslageren.dk/forum/index.php?showtopic=76547
How rare and attractive is it for a collector? How much should I pay - how much will you pay?
Jon