Another tyro question, guys.
I have a copy of one of the above from the 50s, and have seen a 1971 copy advertised for sale. With an interest focusing on the mid/late 1970s, I was wondering how often these books were published? I can see how they might not be produced every year, rather updated by extra pages for new equipment and notices to amend/alter existing pages every so often.
Does anyone have, or know of, a Classbook for 1978, either one produced that year, or a 1971 copy with amendments?
I have a copy of one of the above from the 50s, and have seen a 1971 copy advertised for sale. With an interest focusing on the mid/late 1970s, I was wondering how often these books were published? I can see how they might not be produced every year, rather updated by extra pages for new equipment and notices to amend/alter existing pages every so often.
Does anyone have, or know of, a Classbook for 1978, either one produced that year, or a 1971 copy with amendments?
