I agree. In engraved, interlaced, three-letter monograms in this style, the last name initial is usually centered, and often accentuated by cross-hatching, the first name initial on the left and the middle name initial on the right. CFL.
No, that is a number assigned by the U.S. Navy.
The Chelsea serial number is stamped on the movement, and often the back of the case.
I was mistaken.
Ken's Clock Clinic that specializes in restoration of these notes "Both the Spider and Wasp were gold-plated with a glass sleeve, and the movement can be seen through the glass.... Most of the internal parts of the movement do not appear to have been gold plated with the...