Thanks for your message. I received my copy a week or so ago now, and I must admit that I noticed those things you've commented on within the book. Both Alain and I have discussed about the UCaduceusS insignia on many occasions, and have been unable to find a definitive answer. It certainly seems to true to say that there appears to have been two evolutions of that particular logo, one using a rounded font and another featuring a more squared, block font; representing early and late styles respectively. The general consensus though is that none of the "UCaduceusS" insignia was used during WW2, and that they were introduced in 1947, when the Army and Navy Medical Departments were combined (along with the introduction of the first Army-Navy Catalog of Medical Materiel).
I think that generally the book has been well put together, and there are some great items in there which I have never seen 'in the flesh' before, but as per the First Volume, this one is unfortunately not without its errors!
Thanks and kind regards,
Ben MajorMRC Administratorben@med-dept.com
1943 Harley-Davidson WLA
1943 Douglas C-47
1944 Cushman 53 Airborne Motor Scooter