What is unusual about the manuscript Mozart wrote in his symphony Linz?

Mozart wrote his Symphony No. 36, commonly known as the Linz Symphony, during a visit to Linz, Austria, in 1783. The symphony is notable for its unusual manuscript, which features several significant changes and revisions made by the composer. Mozart made numerous alterations to the score, including changes in instrumentation, dynamic markings, and even entire passages. These changes indicate Mozart's intense creative process and his ongoing refinement of the symphony as he worked on it. The manuscript offers valuable insight into Mozart's compositional methods and the evolution of the work during its creation.