NORTON Behr-Manning Sharpening Stone JB 6 Crystolon Combination Stone F*S Q Street The Check-It 0199 Air Probe

The Check-It 0199 Air Probe yields exceptionally fast readings when used to measure gas and air temperatures

These carriers were never personal issue pieces and were instead kept at unit level for distribution as and when needed for those who were picked for ration duties

EKCo cat no 151 4249

Shops at Caltech Engineering

NORTON Behr-Manning Sharpening Stone JB 6 Crystolon Combination Stone F*S Q Street The Check-It 0199 Air ProbeThis was my Dad's, a 1950 Behr Manning NORTON Sharpening Stone JB 6 Crystolon Combination Stone 1 x 2 x 6". In excellent condition, the box is scruffy from decades in his shop but the stone is hardly used.