2pc lot This vintage burglar alarm from the 1950s-1960s era is a must-have for collectors of original antique items. Made in Hong Kong by V Trade Mark, this two-piece alarm set is a unique addition to any antique collection. One of them is in good working condition and emits a loud and clear sound when triggered. The other is not working   The burglar alarm is an original piece, and its age can be traced back to the 1950s-1960s era. The item is a testament to the quality craftsmanship of Hong Kong manufacturers and is a rare find for collectors of antique items. This two-piece alarm set from V Trade Mark is a great conversation starter and a unique addition to any antique collection.