no nail grids present in the pics, appears glued down over a slab to my eye.

Use the aforementioned lino scraper, can be rented also.

Will probably need a 4 or 8" razor blade scraper to cut the glue off down to slab level.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)