Really enjoying your posts as you share your WW collecting journey. Your pages look great as well. I noticed you have some blanks that I'd be happy to help you fill. I have duplicates that I'd love to put in the hands of somebody who would make good use of them. No strings, no cost to you, just message me and I will send them your way.
The machine shown on the 4d Listers antiseptic surgery stamp was for creating a carbolic drenched germ free atmosphere in the operating area not just in the wound and tools. It worked but irritated the skin of many people who had to work in the area. Joseph Lister also holds the record for the fastest intentional amputation of a limb. I believe he simultaneously sliced off a few fingers from a slow moving asssitant. To save Brother Squint Dollars on international shipping. I might be able to fill many of your Elizabethan 20th century British gaps (no Cost). Please send me a list with SG numbers.