Patent ID: 7527236

Claim:
A form liner for use in creating a simulated stone wall having a random pattern, the form liner comprising: a surface contoured to resemble a plurality of stones; and an outer edge consisting of six non-overlapping connection regions, wherein the six regions are oriented such that a first region connects with a second region, the second region connects with a third region, the third region connects with a fourth region, the fourth region connects with a fifth region, the fifth region connects with a sixth region, and the sixth region connects with the first region, the six regions creating a closed outer edge, each connection region being non-linear and having a plurality of linear edge segments which form a mating profile, wherein the mating profile of each of the first, third, fourth and sixth connection regions exactly mates only with the mating profile of the first, third, fourth, and sixth connection regions, respectively, of another form liner, the mating profile of the second connection region exactly mates only with the mating profile of the fifth connection region of another form liner, and the mating profile of the fifth connection region exactly mates only with the mating profile of the second connection region of another form liner, wherein each of the first, third, fourth, and sixth connection regions has an odd number of linear segments with one of the linear segments being a center segment, and wherein each of the first, third, fourth and sixth connection regions has 2-fold symmetry about an axis which extends through a midpoint of the center segment.