A pair of Lamberton Sterling china saucers or soup liners made for the exclusive Detroit Golf Club.  One saucer is 6 3/8" diameter, the other slightly smaller at 6 1/4".  They seem slightly oversize so perhaps soup bowl liners.  Both are in good condition - no chips or cracks - with no appreciable surface wear.  Both have an underglaze speck of grit as made, see 3rd & 7th photos.  Purchase price is for the pair.