Time Glasses

They Come in: 30 mins, 3 mins, 1 hour, 4 mins and 1 hour Time glasses are made from bobbin drive flanges and brass rods, the glasses are accurate to a few seconds. Prices (left to right) 3 minutes 10 GBP. 4 minutes 24 GBP . 30 minutes 28 GBP. 60 minutes 40 GBP. 60 minutes 65 GBP.