Old WWII Air Ministry Inclinometer, 1940, Makers Mechanism Ltd Croydon UK shoulder An old Tyzack brass back

An old Tyzack brass back tenon saw with a thick

1627 - 12"

33mm wide very slightly curved router fence made by Edward Preston

It is presumed they are old model boat / ship plans:

Three old tool postcards oozing tool related history

Old WWII Air Ministry Inclinometer, 1940, Makers Mechanism Ltd Croydon UK shoulder An old Tyzack brass backAn Old WWII Air Ministry Inclinometer, 1940, Makers Mechanism Ltd Croydon UK. This old inclinometer was used by the RAF in WWII as I understand. This inclinometer has the nice feature of still being housed in its good original wooden box. The box has a brass plaque marked 'Makers Mechanism Ltd Croydon UK'. Condition: please see photos for condition.