I have an Armstrong 305B LTD, the serial number is 7116937. I purchased it from a dealer, supposedly new, in December of 2005. I have often wondered just how old the instrument is, since a dealer inventory tag had the appearance of being quite aged (well yellowed and dirty). After reading the posts in this thread I decided to call Conn-Selmer to see what I could find out. The person I talked to said all she could tell me is that it showed up as a model 305B, and that it was sold by Armstrong to a dealer in March of 2000. I've never seen, or heard mention of, a 305B LTD before. Although the instrument showed up in Conn-Selmer's database as a model 305B, this instrument seems to have all the features of a 305B except the barrel is engraved 'LDT' and the flute has a gold-plated lip plate and crown. The person I talked to at the factory knew nothing of the LTD version, which I find rather curious. Sorry for the long post, I'm just wondering if anyone else is familiar with the Armstron Model 305B LTD. Thanks!
Armstrong Furnace Model Numbers
Serial Number Idm
Armstrong Pump Serial Number Lookup
Serial Number/Date Code Sequence The date that a unit was manufactured can be determined by looking at the unit serial number. Compare the unit serial number to the three examples below (manufactured in 1970-77, 1978-92, or 1993-current). AIR-CONDITIONER DATE CODES (serial #) AMANA / BLACKHORSEB=1971 or 1981 (Of course, now that they've been bought by Goodman, who knows what'll happen) BARD1962 to March 1980 Sample Number 123456 A D 1st six digits are the Unit Identity Number. In this example they are represented by the numbers 123456. 7th digit is the month of Manufacture.
