I like this ruler because it allows me to create HST in 1/8 increments as well as 1/16. Most other rulers I have seen only provide 1/4 or 1/2 inch increments.
... Read more
virtual compass museum - aeronautical compasses. TOP OF PAGE AIR MINISTRY (A.M.) PROFILE - The Air Ministry was formerly a department of the British government with the responsibility of managing the
... Read more