yeh!, i,d say so. it was common practice for the majors, decca, columbia, rca, mgm etc to press a couple of thousand demo,s of each release, dish em out to radio stations and if any of them made any sort of noise, then further issue copies were pressed up. the demures single died a particularly nasty death, mainly due to lack of any such airplay so only limited amounts of stock copies were sent out, demos turn up from time to time (about 400 quid nowadays). i,d rate the issue about 600.
best, bri.