It shows the plate for the Coast Guard version, having been made by the company of L.R. Dooley. They said a google check for L.R. Dooley showed only some corospondence between them and a dancer.
However, I did a check on Google, and found this:http://redbook.gao.gov/8/fl0036790.php
Which states the Coast Guard had entered a contract with L.R. Dooley for 800 AC-Dc communication recievers in 1948. However, L.R. Dooley failed to provide the recievers, and it appears by 1952, the coast guard wanted to terminate the contract and go with Hallicracters at that point.
I also found some references to a L.R. Dooley in the 1930s (1933 and 1938) as having worked as a representative for the Curtiss-Wright Aircraft Company.
I suspect they are one and the same person, and that this was possibly his first (and only?) venture into providing radios, however as stated on the above page, the first test model he provided failed to meet their specs, and he then failed to provide a second model. By this time, it was late 1952/early 1953 when the coast guard wanted to terminate the contract. It's possibly at this time, that he then sold off his remaining parts to Boulevard Electronics, who then simply sold them off as kits, as shown in the 1953 ad.