I believe they are considered a 3/4 size rather than "full size" machine. I'll let the more seasoned vintage people correct me, if I'm wrong. I have both the FW & 301a machines and absolutely LOVE the 301A. It's the "big sister" to the FW and usually can be had for a lot less $ than the FW. Mine (I have 2) are dependable, workhorse machines. Great for dropping the feedogs and fmq. Easy to maintain. I've quilted queen size quilts on mine. Good luck in you bidding!