I have over 60 air towers for sale. They range from the common ECO 90 series to some rare Romorts and Air Scales. Prices would range from $350.00 to $4000.00. I actually offer ECO 90 series tireflators for less some some have been going for on ebay lately. To see a selection of my offerings please look at my web site:
www.crspub.com I have also written a book "Tireflators" which identifies over 170 air meters made since 1897. That's on the site also. You can also call me at 314-427-3943 or email me at jhsim@swbell.net