SEPTIC TANK MANUAL from MARYLAND STATE DEPT. OF HEALTH, Possibly from 1969

SEPTIC TANK MANUAL from MARYLAND STATE DEPT. OF HEALTH, Possibly from 1969 (On the back cover is the code 569-5M-EHS. Since this manual does not seem to be ANYWHERE on the internet, I'm "educated guessing" that the publication date is 5/69 or May, 1969. Allowing for its simple, basic, typewritten pages, it could very well be from before that.) I've got to say, that despite the fact that most people crinkle their nose at the mention of "septic tank," this little booklet (manual) is quite interesting! 12 pages with B&W illustrations. Very well used, but complete. It has stains on the covers, and some folded corners (dog-ears) to 1 or 2 of the pages. Spine in great shape with mostly-clean staples! Professional packaging always, since 2003.