AirChime Serial Number Tags

The very first AirChime locomotive horns, the H6 series did not have a tag. Instead, a large "Hexatone" information plate was cast into the manifold itself. Here's a photo of the information plate on H6 #1. 

The next series of horns from AirChime were the N3's. These, like the H6's did not feature traditional data tags. Instead, the model and serial number were stamped into the manifold itself.

The single H and N horns also were marked with the model and serial number somewhere on the horn, usually the manifold with a metal stamp.

The first M series horns were stamped with the serial number on the back of the #1 power chamber, and on the back of the manifold mounting foot. Some horns sold by Burnett Power Saws had a brass BPS tag on either the manifold, or the back of the largest bell on the horn. They also had "Made in Canada" brass tags on a support rib of M5 manifolds, and along the top of M3 manifolds.

Starting at about serial number #1000, large Burnett Power Saws tags started to appear on M horns. These were featured on one of the side reinforcements on M5's, and along the top of the #1 bell mount on M3's. On early K horns, they were found on the largest bell of the horn, over the bell mounting foot. Large serial numbers continued until about SN 1100.

At around serial number #2000, the large BPS tags were abandoned in favor of smaller "The Holden Co. LTD." tags. These were found in the same place as the big BPS tags. 

Around serial number #7300, "The Holden Co. LTD" builder changed to "IEC-Holden LTD." Other changes included the addition of "Edmonton" in the locations line.

Around serial number 11,000 the tags changed to IEC-Holden INC. The locations line lost Moncton and Vancouver, and was left with: "Montreal - Toronto - Winnipeg - Edmonton"

At about serial number 20,000, AirChime stopped putting Holden tags on locomotive horns. They instead switched to their on stainless steel tag shown here. There were a few variations of this tag for marine and industrial warning horns.