In the early 1970's "Mowbags" became available. They took small square bales. I can't remember if we used our first baler, an International B45, or our next, a Bamford BL50. We got special wedges to put into the bale chamber, and the tension was screwed up to max. I think the bale length was set at shortest possible, because the bales were pretty heavy. It was wilted a bit, baled very tight, and each bale put into a bag. The bags were not sealed but had to be closed by twisting the neck, applying a twisted wire tie using a pull and twist tool, and then the neck doubled over and another wire applied. They made very good silage, but every bale was very vulnerable to damage, eg birds pecking.
Burnside Dexters 00316
Isle of Bute