[QUOTE=Jordan Baker;222397]David, that mount is the original style used only with the WS11. They were removed when the WS19 was installed.[/
Yes, the Wireless No.19 Set mounting instructions indicate the original factory installed Wireless No.11 Set base was to be removed, and returned to stores, less some mounting hardware. However . . . interestingly the No. 11 Set factory base was also reused to form a bracket to hold mortar bombs. Those details are contained in the MK-I* modifications instructions for conversion when mounting the 2" mortar to the engine deck.