A mould for making at least a wear indicator for a tyre, the mould comprising - at least seven rods extending in parallel in a direction of height on a same side of an object (110, 160) and connected to the object (110, 160), wherein the rods are arranged such that • multiple distances (d i,j (z)) are left in between pairs (i,j) of cross sections of the rods in a cross-sectional plane, wherein • the cross-sections of the rods lie on the cross-sectional plane having surface normal parallel to the direction of height and intersecting with at least some of the rods at a height position (z) and • a minimum of the multiple distances (d i,j (z)) is at least 0.5 mm; and • in the direction of height, the cross section and/or the height of at least some of the rods varies in such a way, that at a number of different height positions, the cross sections of the rods at those height positions define that number of different mirror-image symbols, of which mirror images are expressible by the wear indicator, one mirror-image symbol corresponding to one height position, the number of different height positions and mirror-image symbols being at least two; characterized in that - in the direction of height, the cross section of at least one of the rods varies in such a way that the cross section is large at a first height position, small at a second height position, and large at a third height position, wherein - the second height position is located in between the first height position and the third height position. - at least seven rods extending in parallel in a direction of height on a same side of an object (110, 160) and connected to the object (110, 160), wherein the rods are arranged such that • multiple distances (d i,j (z)) are left in between pairs (i,j) of cross sections of the rods in a cross-sectional plane, wherein • the cross-sections of the rods lie on the cross-sectional plane having surface normal parallel to the direction of height and intersecting with at least some of the rods at a height position (z) and • a minimum of the multiple distances (d i,j (z)) is at least 0.5 mm; and • in the direction of height, the cross section and/or the height of at least some of the rods varies in such a way, that at a number of different height positions, the cross sections of the rods at those height positions define that number of different mirror-image symbols, of which mirror images are expressible by the wear indicator, one mirror-image symbol corresponding to one height position, the number of different height positions and mirror-image symbols being at least two; characterized in that • multiple distances (d i,j (z)) are left in between pairs (i,j) of cross sections of the rods in a cross-sectional plane, wherein • the cross-sections of the rods lie on the cross-sectional plane having surface normal parallel to the direction of height and intersecting with at least some of the rods at a height position (z) and • a minimum of the multiple distances (d i,j (z)) is at least 0.5 mm; and • in the direction of height, the cross section and/or the height of at least some of the rods varies in such a way, that at a number of different height positions, the cross sections of the rods at those height positions define that number of different mirror-image symbols, of which mirror images are expressible by the wear indicator, one mirror-image symbol corresponding to one height position, the number of different height positions and mirror-image symbols being at least two; - in the direction of height, the cross section of at least one of the rods varies in such a way that the cross section is large at a first height position, small at a second height position, and large at a third height position, wherein - the second height position is located in between the first height position and the third height position.