In the opinion of Sten Karling, who published his study of the Renaissance and baroque-era art of wood carving and carpentry in 1943, the Hageri retable was not one of Ackermann’s earlier, but rather one of his later works. An analysis of the style of the older parts of the retable and a comparison to the master’s earlier and later works place this hypothesis in doubt. It can instead be estimated that the Hageri retable was completed in the latter half of the 1670s or in the first half of the 1680s, at the same time as the Simuna Church retable, for instance.
Starting in the 1690s, Ackermann no longer used the auricular style that still figured in the Hageri church retable, since it had become old-fashioned. The same goes for the putto cantilevers at the bases of the columns, which after that time are found only on pulpits. The Türi church retable admittedly has putto cantilevers, but no longer beneath its columns. They are instead beneath the side figures.