hand warmer

I finally bought my own pocket hand warmer from Restoration Hardware.

It is a chrome-plated device, 5 x 7.5 x 1 cm. Apparently they were popular in the 1950s. Safe and simple to operate. It promises to deliver 8 to 12 hours of heat on a single fill. It uses butane or lighter fluid. Includes a red fabric sack.

This will come in handy on those chilly observing sessions...