Turn and Bank Indicator, 4 Minute Turn, 2.5 inch, PN A1050 Hudson made by Burton under contract

made by Burton under contract with Bendix Pioneer to the Pioneer Part No

The liquid has since evaporated

Type A-8 stopwatches were used in any WWII aircraft with a navigator

it details the use of flight instruments of the era

It appears that the lens can be removed and the upper and lower operating limit indicators can be set by sliding the triangular pointers along the scale (we have not attempted this in order to preserve the artifact)

Turn and Bank Indicator, 4 Minute Turn, 2.5 inch, PN A1050 Hudson made by Burton under contractThis is a recent era 2. 5 inch, 4 Minute turn, Turn and Bank Indicator made by RC Allen. The glass and case are intact, as is the glass inclinometer. Measures ~5 inches long.